Mitsui Petrochemical Industries, Ltd.

Agency of Industrial Science and Technology

Kenji Saeki

Yoshihisa Kiso

Katsuo Taniguchi

Hiroshi Fukuhara

Hisaya Miki

Tetsuo Hayashi

Tadaaki Fujimoto

Yutaka Haneda

Toru Taguchi

Sadao Yoshimoto

Tokinori Agoo

In a process for producing 2,6-dihydroxynaphthalene from 2,6-diisopropylnaphthalene, 2,6-diisopropylnaphthalene is oxidized in the presence of a specific proportion of a basic compound to hydroxylate or hydroperoxylate 2,6-diisopropylnaphthalene in a high conversion, and the resulting intermediate is then subjected to acid cleavage in the presence of hydrogen peroxide to produce 2,6-dihydroxynaphthalene in a high yield. The yield of 2,6-dihydroxynaphthalene increases by subjecting the reaction mixture containing the above intermediate to a purifying operation or dehydrating operation or adding acetone to it before it is submitted to the acid cleavage. 2,6-Dihydroxynaphthalene may be reacted with acetic anhydride to obtain 2,6-diacetoxynaphthalene.

Process for oxidizing 2,6-diisopropylnaphthalene

Alkali metal-supported catalyst

A process for producing an oxygen-containing organic compound which comprises reacting carbon monoxide with hydrogen in the presence of a catalyst under heat and pressure, said catalyst comprising (a) a ruthenium compound and (b) an imidazole compound.

Process for producing oxygen-containing organic compounds

In a method of producing a dimer with a six-membered ring by contacting a catalyst containing iron compounds and organoaluminum compounds with conjugated dienes, the improvements comprising using a catalyst comprising ferrous or ferric compounds organoaluminum compounds and nitric oxide.

Catalytic dimerization of conjugated dienes

Growing community of inventors

Ohtake, Japan

Kenji Saeki